Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwB52K3yuqXhcv8FMZAGkwlxEsPpL8r2zOJH1kkDY4ryyxLR2+Lkh4C6hWjV… (844 chars)"
  }
}